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Xiao-Peng Chu

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Preprint Sep 2026

VARG: Value-Aware and Ranking-Aligned Generative Retrieval for Dynamic E-commerce Search

VARG, a generative retrieval system for Tmall App search that directly admits generated item candidates to the existing final ranker and improves GMV, per-user IPV, and PCTR and online shopping-guide query evaluations further show that VARG maintains competitive relevance with a smaller candidate quota.

Xiao-Peng Chu, Jian-Bo Zhu, Ming-Min Jin et al. · 1 citation

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